Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 516 deletions

diff --git a/gnu/llvm/lib/MC/MCMachOStreamer.cpp b/gnu/llvm/lib/MC/MCMachOStreamer.cpp
deleted file mode 100644
index b30317e7467..00000000000
--- a/gnu/llvm/lib/MC/MCMachOStreamer.cpp
+++ /dev/null
@@ -1,516 +0,0 @@
-//===- MCMachOStreamer.cpp - MachO Streamer -------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/MC/MCAsmBackend.h"
-#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCCodeEmitter.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCDirectives.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCFixup.h"
-#include "llvm/MC/MCFragment.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCLinkerOptimizationHint.h"
-#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCObjectStreamer.h"
-#include "llvm/MC/MCObjectWriter.h"
-#include "llvm/MC/MCSection.h"
-#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCSymbolMachO.h"
-#include "llvm/MC/MCValue.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Support/raw_ostream.h"
-#include <cassert>
-#include <vector>
-
-using namespace llvm;
-
-namespace {
-
-class MCMachOStreamer : public MCObjectStreamer {
-private:
-  /// LabelSections - true if each section change should emit a linker local
-  /// label for use in relocations for assembler local references. Obviates the
-  /// need for local relocations. False by default.
-  bool LabelSections;
-
-  bool DWARFMustBeAtTheEnd;
-  bool CreatedADWARFSection;
-
-  /// HasSectionLabel - map of which sections have already had a non-local
-  /// label emitted to them. Used so we don't emit extraneous linker local
-  /// labels in the middle of the section.
-  DenseMap<const MCSection*, bool> HasSectionLabel;
-
-  void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &STI) override;
-
-  void EmitDataRegion(DataRegionData::KindTy Kind);
-  void EmitDataRegionEnd();
-
-public:
-  MCMachOStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> MAB,
-                  std::unique_ptr<MCObjectWriter> OW,
-                  std::unique_ptr<MCCodeEmitter> Emitter,
-                  bool DWARFMustBeAtTheEnd, bool label)
-      : MCObjectStreamer(Context, std::move(MAB), std::move(OW),
-                         std::move(Emitter)),
-        LabelSections(label), DWARFMustBeAtTheEnd(DWARFMustBeAtTheEnd),
-        CreatedADWARFSection(false) {}
-
-  /// state management
-  void reset() override {
-    CreatedADWARFSection = false;
-    HasSectionLabel.clear();
-    MCObjectStreamer::reset();
-  }
-
-  /// @name MCStreamer Interface
-  /// @{
-
-  void ChangeSection(MCSection *Sect, const MCExpr *Subsect) override;
-  void EmitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) override;
-  void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
-  void EmitEHSymAttributes(const MCSymbol *Symbol, MCSymbol *EHSymbol) override;
-  void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
-  void EmitLinkerOptions(ArrayRef<std::string> Options) override;
-  void EmitDataRegion(MCDataRegionType Kind) override;
-  void EmitVersionMin(MCVersionMinType Kind, unsigned Major, unsigned Minor,
-                      unsigned Update, VersionTuple SDKVersion) override;
-  void EmitBuildVersion(unsigned Platform, unsigned Major, unsigned Minor,
-                        unsigned Update, VersionTuple SDKVersion) override;
-  void EmitThumbFunc(MCSymbol *Func) override;
-  bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
-  void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
-  void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
-                        unsigned ByteAlignment) override;
-
-  void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
-                             unsigned ByteAlignment) override;
-  void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
-                    uint64_t Size = 0, unsigned ByteAlignment = 0,
-                    SMLoc Loc = SMLoc()) override;
-  void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
-                      unsigned ByteAlignment = 0) override;
-
-  void EmitIdent(StringRef IdentString) override {
-    llvm_unreachable("macho doesn't support this directive");
-  }
-
-  void EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override {
-    getAssembler().getLOHContainer().addDirective(Kind, Args);
-  }
-
-  void FinishImpl() override;
-};
-
-} // end anonymous namespace.
-
-static bool canGoAfterDWARF(const MCSectionMachO &MSec) {
-  // These sections are created by the assembler itself after the end of
-  // the .s file.
-  StringRef SegName = MSec.getSegmentName();
-  StringRef SecName = MSec.getSectionName();
-
-  if (SegName == "__LD" && SecName == "__compact_unwind")
-    return true;
-
-  if (SegName == "__IMPORT") {
-    if (SecName == "__jump_table")
-      return true;
-
-    if (SecName == "__pointers")
-      return true;
-  }
-
-  if (SegName == "__TEXT" && SecName == "__eh_frame")
-    return true;
-
-  if (SegName == "__DATA" && (SecName == "__nl_symbol_ptr" ||
-                              SecName == "__thread_ptr"))
-    return true;
-
-  return false;
-}
-
-void MCMachOStreamer::ChangeSection(MCSection *Section,
-                                    const MCExpr *Subsection) {
-  // Change the section normally.
-  bool Created = changeSectionImpl(Section, Subsection);
-  const MCSectionMachO &MSec = *cast<MCSectionMachO>(Section);
-  StringRef SegName = MSec.getSegmentName();
-  if (SegName == "__DWARF")
-    CreatedADWARFSection = true;
-  else if (Created && DWARFMustBeAtTheEnd && !canGoAfterDWARF(MSec))
-    assert(!CreatedADWARFSection && "Creating regular section after DWARF");
-
-  // Output a linker-local symbol so we don't need section-relative local
-  // relocations. The linker hates us when we do that.
-  if (LabelSections && !HasSectionLabel[Section] &&
-      !Section->getBeginSymbol()) {
-    MCSymbol *Label = getContext().createLinkerPrivateTempSymbol();
-    Section->setBeginSymbol(Label);
-    HasSectionLabel[Section] = true;
-  }
-}
-
-void MCMachOStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
-                                          MCSymbol *EHSymbol) {
-  getAssembler().registerSymbol(*Symbol);
-  if (Symbol->isExternal())
-    EmitSymbolAttribute(EHSymbol, MCSA_Global);
-  if (cast<MCSymbolMachO>(Symbol)->isWeakDefinition())
-    EmitSymbolAttribute(EHSymbol, MCSA_WeakDefinition);
-  if (Symbol->isPrivateExtern())
-    EmitSymbolAttribute(EHSymbol, MCSA_PrivateExtern);
-}
-
-void MCMachOStreamer::EmitLabel(MCSymbol *Symbol, SMLoc Loc) {
-  // We have to create a new fragment if this is an atom defining symbol,
-  // fragments cannot span atoms.
-  if (getAssembler().isSymbolLinkerVisible(*Symbol))
-    insert(new MCDataFragment());
-
-  MCObjectStreamer::EmitLabel(Symbol, Loc);
-
-  // This causes the reference type flag to be cleared. Darwin 'as' was "trying"
-  // to clear the weak reference and weak definition bits too, but the
-  // implementation was buggy. For now we just try to match 'as', for
-  // diffability.
-  //
-  // FIXME: Cleanup this code, these bits should be emitted based on semantic
-  // properties, not on the order of definition, etc.
-  cast<MCSymbolMachO>(Symbol)->clearReferenceType();
-}
-
-void MCMachOStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
-  MCValue Res;
-
-  if (Value->evaluateAsRelocatable(Res, nullptr, nullptr)) {
-    if (const MCSymbolRefExpr *SymAExpr = Res.getSymA()) {
-      const MCSymbol &SymA = SymAExpr->getSymbol();
-      if (!Res.getSymB() && (SymA.getName() == "" || Res.getConstant() != 0))
-        cast<MCSymbolMachO>(Symbol)->setAltEntry();
-    }
-  }
-  MCObjectStreamer::EmitAssignment(Symbol, Value);
-}
-
-void MCMachOStreamer::EmitDataRegion(DataRegionData::KindTy Kind) {
-  // Create a temporary label to mark the start of the data region.
-  MCSymbol *Start = getContext().createTempSymbol();
-  EmitLabel(Start);
-  // Record the region for the object writer to use.
-  DataRegionData Data = { Kind, Start, nullptr };
-  std::vector<DataRegionData> &Regions = getAssembler().getDataRegions();
-  Regions.push_back(Data);
-}
-
-void MCMachOStreamer::EmitDataRegionEnd() {
-  std::vector<DataRegionData> &Regions = getAssembler().getDataRegions();
-  assert(!Regions.empty() && "Mismatched .end_data_region!");
-  DataRegionData &Data = Regions.back();
-  assert(!Data.End && "Mismatched .end_data_region!");
-  // Create a temporary label to mark the end of the data region.
-  Data.End = getContext().createTempSymbol();
-  EmitLabel(Data.End);
-}
-
-void MCMachOStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
-  // Let the target do whatever target specific stuff it needs to do.
-  getAssembler().getBackend().handleAssemblerFlag(Flag);
-  // Do any generic stuff we need to do.
-  switch (Flag) {
-  case MCAF_SyntaxUnified: return; // no-op here.
-  case MCAF_Code16: return; // Change parsing mode; no-op here.
-  case MCAF_Code32: return; // Change parsing mode; no-op here.
-  case MCAF_Code64: return; // Change parsing mode; no-op here.
-  case MCAF_SubsectionsViaSymbols:
-    getAssembler().setSubsectionsViaSymbols(true);
-    return;
-  }
-}
-
-void MCMachOStreamer::EmitLinkerOptions(ArrayRef<std::string> Options) {
-  getAssembler().getLinkerOptions().push_back(Options);
-}
-
-void MCMachOStreamer::EmitDataRegion(MCDataRegionType Kind) {
-  switch (Kind) {
-  case MCDR_DataRegion:
-    EmitDataRegion(DataRegionData::Data);
-    return;
-  case MCDR_DataRegionJT8:
-    EmitDataRegion(DataRegionData::JumpTable8);
-    return;
-  case MCDR_DataRegionJT16:
-    EmitDataRegion(DataRegionData::JumpTable16);
-    return;
-  case MCDR_DataRegionJT32:
-    EmitDataRegion(DataRegionData::JumpTable32);
-    return;
-  case MCDR_DataRegionEnd:
-    EmitDataRegionEnd();
-    return;
-  }
-}
-
-void MCMachOStreamer::EmitVersionMin(MCVersionMinType Kind, unsigned Major,
-                                     unsigned Minor, unsigned Update,
-                                     VersionTuple SDKVersion) {
-  getAssembler().setVersionMin(Kind, Major, Minor, Update, SDKVersion);
-}
-
-void MCMachOStreamer::EmitBuildVersion(unsigned Platform, unsigned Major,
-                                       unsigned Minor, unsigned Update,
-                                       VersionTuple SDKVersion) {
-  getAssembler().setBuildVersion((MachO::PlatformType)Platform, Major, Minor,
-                                 Update, SDKVersion);
-}
-
-void MCMachOStreamer::EmitThumbFunc(MCSymbol *Symbol) {
-  // Remember that the function is a thumb function. Fixup and relocation
-  // values will need adjusted.
-  getAssembler().setIsThumbFunc(Symbol);
-  cast<MCSymbolMachO>(Symbol)->setThumbFunc();
-}
-
-bool MCMachOStreamer::EmitSymbolAttribute(MCSymbol *Sym,
-                                          MCSymbolAttr Attribute) {
-  MCSymbolMachO *Symbol = cast<MCSymbolMachO>(Sym);
-
-  // Indirect symbols are handled differently, to match how 'as' handles
-  // them. This makes writing matching .o files easier.
-  if (Attribute == MCSA_IndirectSymbol) {
-    // Note that we intentionally cannot use the symbol data here; this is
-    // important for matching the string table that 'as' generates.
-    IndirectSymbolData ISD;
-    ISD.Symbol = Symbol;
-    ISD.Section = getCurrentSectionOnly();
-    getAssembler().getIndirectSymbols().push_back(ISD);
-    return true;
-  }
-
-  // Adding a symbol attribute always introduces the symbol, note that an
-  // important side effect of calling registerSymbol here is to register
-  // the symbol with the assembler.
-  getAssembler().registerSymbol(*Symbol);
-
-  // The implementation of symbol attributes is designed to match 'as', but it
-  // leaves much to desired. It doesn't really make sense to arbitrarily add and
-  // remove flags, but 'as' allows this (in particular, see .desc).
-  //
-  // In the future it might be worth trying to make these operations more well
-  // defined.
-  switch (Attribute) {
-  case MCSA_Invalid:
-  case MCSA_ELF_TypeFunction:
-  case MCSA_ELF_TypeIndFunction:
-  case MCSA_ELF_TypeObject:
-  case MCSA_ELF_TypeTLS:
-  case MCSA_ELF_TypeCommon:
-  case MCSA_ELF_TypeNoType:
-  case MCSA_ELF_TypeGnuUniqueObject:
-  case MCSA_Hidden:
-  case MCSA_IndirectSymbol:
-  case MCSA_Internal:
-  case MCSA_Protected:
-  case MCSA_Weak:
-  case MCSA_Local:
-    return false;
-
-  case MCSA_Global:
-    Symbol->setExternal(true);
-    // This effectively clears the undefined lazy bit, in Darwin 'as', although
-    // it isn't very consistent because it implements this as part of symbol
-    // lookup.
-    //
-    // FIXME: Cleanup this code, these bits should be emitted based on semantic
-    // properties, not on the order of definition, etc.
-    Symbol->setReferenceTypeUndefinedLazy(false);
-    break;
-
-  case MCSA_LazyReference:
-    // FIXME: This requires -dynamic.
-    Symbol->setNoDeadStrip();
-    if (Symbol->isUndefined())
-      Symbol->setReferenceTypeUndefinedLazy(true);
-    break;
-
-    // Since .reference sets the no dead strip bit, it is equivalent to
-    // .no_dead_strip in practice.
-  case MCSA_Reference:
-  case MCSA_NoDeadStrip:
-    Symbol->setNoDeadStrip();
-    break;
-
-  case MCSA_SymbolResolver:
-    Symbol->setSymbolResolver();
-    break;
-
-  case MCSA_AltEntry:
-    Symbol->setAltEntry();
-    break;
-
-  case MCSA_PrivateExtern:
-    Symbol->setExternal(true);
-    Symbol->setPrivateExtern(true);
-    break;
-
-  case MCSA_WeakReference:
-    // FIXME: This requires -dynamic.
-    if (Symbol->isUndefined())
-      Symbol->setWeakReference();
-    break;
-
-  case MCSA_WeakDefinition:
-    // FIXME: 'as' enforces that this is defined and global. The manual claims
-    // it has to be in a coalesced section, but this isn't enforced.
-    Symbol->setWeakDefinition();
-    break;
-
-  case MCSA_WeakDefAutoPrivate:
-    Symbol->setWeakDefinition();
-    Symbol->setWeakReference();
-    break;
-  }
-
-  return true;
-}
-
-void MCMachOStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
-  // Encode the 'desc' value into the lowest implementation defined bits.
-  getAssembler().registerSymbol(*Symbol);
-  cast<MCSymbolMachO>(Symbol)->setDesc(DescValue);
-}
-
-void MCMachOStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
-                                       unsigned ByteAlignment) {
-  // FIXME: Darwin 'as' does appear to allow redef of a .comm by itself.
-  assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
-
-  getAssembler().registerSymbol(*Symbol);
-  Symbol->setExternal(true);
-  Symbol->setCommon(Size, ByteAlignment);
-}
-
-void MCMachOStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
-                                            unsigned ByteAlignment) {
-  // '.lcomm' is equivalent to '.zerofill'.
-  return EmitZerofill(getContext().getObjectFileInfo()->getDataBSSSection(),
-                      Symbol, Size, ByteAlignment);
-}
-
-void MCMachOStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
-                                   uint64_t Size, unsigned ByteAlignment,
-                                   SMLoc Loc) {
-  // On darwin all virtual sections have zerofill type. Disallow the usage of
-  // .zerofill in non-virtual functions. If something similar is needed, use
-  // .space or .zero.
-  if (!Section->isVirtualSection()) {
-    getContext().reportError(
-        Loc, "The usage of .zerofill is restricted to sections of "
-             "ZEROFILL type. Use .zero or .space instead.");
-    return; // Early returning here shouldn't harm. EmitZeros should work on any
-            // section.
-  }
-
-  PushSection();
-  SwitchSection(Section);
-
-  // The symbol may not be present, which only creates the section.
-  if (Symbol) {
-    EmitValueToAlignment(ByteAlignment, 0, 1, 0);
-    EmitLabel(Symbol);
-    EmitZeros(Size);
-  }
-  PopSection();
-}
-
-// This should always be called with the thread local bss section.  Like the
-// .zerofill directive this doesn't actually switch sections on us.
-void MCMachOStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
-                                     uint64_t Size, unsigned ByteAlignment) {
-  EmitZerofill(Section, Symbol, Size, ByteAlignment);
-}
-
-void MCMachOStreamer::EmitInstToData(const MCInst &Inst,
-                                     const MCSubtargetInfo &STI) {
-  MCDataFragment *DF = getOrCreateDataFragment();
-
-  SmallVector<MCFixup, 4> Fixups;
-  SmallString<256> Code;
-  raw_svector_ostream VecOS(Code);
-  getAssembler().getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI);
-
-  // Add the fixups and data.
-  for (MCFixup &Fixup : Fixups) {
-    Fixup.setOffset(Fixup.getOffset() + DF->getContents().size());
-    DF->getFixups().push_back(Fixup);
-  }
-  DF->setHasInstructions(STI);
-  DF->getContents().append(Code.begin(), Code.end());
-}
-
-void MCMachOStreamer::FinishImpl() {
-  EmitFrames(&getAssembler().getBackend());
-
-  // We have to set the fragment atom associations so we can relax properly for
-  // Mach-O.
-
-  // First, scan the symbol table to build a lookup table from fragments to
-  // defining symbols.
-  DenseMap<const MCFragment *, const MCSymbol *> DefiningSymbolMap;
-  for (const MCSymbol &Symbol : getAssembler().symbols()) {
-    if (getAssembler().isSymbolLinkerVisible(Symbol) && Symbol.isInSection() &&
-        !Symbol.isVariable()) {
-      // An atom defining symbol should never be internal to a fragment.
-      assert(Symbol.getOffset() == 0 &&
-             "Invalid offset in atom defining symbol!");
-      DefiningSymbolMap[Symbol.getFragment()] = &Symbol;
-    }
-  }
-
-  // Set the fragment atom associations by tracking the last seen atom defining
-  // symbol.
-  for (MCSection &Sec : getAssembler()) {
-    const MCSymbol *CurrentAtom = nullptr;
-    for (MCFragment &Frag : Sec) {
-      if (const MCSymbol *Symbol = DefiningSymbolMap.lookup(&Frag))
-        CurrentAtom = Symbol;
-      Frag.setAtom(CurrentAtom);
-    }
-  }
-
-  this->MCObjectStreamer::FinishImpl();
-}
-
-MCStreamer *llvm::createMachOStreamer(MCContext &Context,
-                                      std::unique_ptr<MCAsmBackend> &&MAB,
-                                      std::unique_ptr<MCObjectWriter> &&OW,
-                                      std::unique_ptr<MCCodeEmitter> &&CE,
-                                      bool RelaxAll, bool DWARFMustBeAtTheEnd,
-                                      bool LabelSections) {
-  MCMachOStreamer *S =
-      new MCMachOStreamer(Context, std::move(MAB), std::move(OW), std::move(CE),
-                          DWARFMustBeAtTheEnd, LabelSections);
-  const Triple &Target = Context.getObjectFileInfo()->getTargetTriple();
-  S->EmitVersionForTarget(Target, Context.getObjectFileInfo()->getSDKVersion());
-  if (RelaxAll)
-    S->getAssembler().setRelaxAll(true);
-  return S;
-}